UCZ high-precision magnetostrictive level gauge

UCZ high-precision magnetostrictive level gauge

The UCZ magnetostrictive level gauge has the characteristics of high precision, high stability, high reliability, and high cost-effectiveness. It can be used in various industrial measurement and control situations, and can also be used as a measuring instrument. This series of products is a high-precision magnetic level gauge sensor that can continuously measure liquid level and interface, and provide on-site display and analog signal output. The sensing resolution is more than 10 times higher than traditional reed tube sensors. The basic structure consists of three parts: detection rod, circuit sensing element, and float. During measurement, the circuit sensing element generates a current pulse, which is transmitted downwards along the probe rod and generates a circular magnetic field. There is a float outside the detection rod, which moves up and down along the detection rod with the change of liquid level. Due to the presence of a set of permanent magnet steel inside the float, it simultaneously generates a magnetic field. When the electromagnetic field meets the magnetic field of the float, a "twisted" pulse is generated. Convert the time difference between the "twisted" pulse and the current pulse into a pulse signal to calculate the actual position of the float and measure the liquid level. It can also be used in conjunction with the UZ type magnetic liquid level gauge.

Measurement principle:The magnetostrictive liquid level gauge is mainly composed of electronic components, magnetostrictive waveguide wires, floats, and other parts. During measurement, electronic components generate a current "excitation" pulse, which travels down the waveguide at the speed of light and forms a circumferential Ampere ring magnetic field around the waveguide. When the annular magnetic field generated by the excitation pulse current meets the bias magnetic field generated by the permanent magnet inside the float, the magnetic field around the float changes, causing the waveguide wire made of magnetostrictive material to generate an induced torsional wave pulse at the position of the float. The torsional wave propagates at the speed of sound from the generation point to both ends of the waveguide wire. The torsional wave transmitted to the end is absorbed by the damping device, and the signal transmitted to the excitation end is received by the detection device. The time difference between the pulse current and the torsional wave is measured by electronic components, and then multiplied by the propagation speed of the torsional wave in the waveguide wire (fixed amount of 2800m/s), the distance between the position where the float generates the torsional wave and the measurement reference point, that is, the position of the liquid surface, can be accurately calculated. The sentence is:.

Product Features:

1. It can continuously measure the liquid level or interface of the storage tank.

2. Adopting the principle of magnetostriction.

3. High measurement accuracy, with an error of only 0.01% of the full range and an error not exceeding 1mm.

4. Suitable for high temperature and high pressure working conditions, external bundling type: -40~350 ℃; Floating ball insertion type: 40~120 ℃, pressure can reach 11.0Mpa.

5. It has intrinsic safety and explosion-proof performance, suitable for use in flammable and explosive places.

6. Output standard 4-20mA signal with Hart protocol communication.

7. Installed on the top or side of the tank, integrated installation and maintenance are convenient, and on-site calibration is supported.

8. Can simultaneously measure liquid level and boundary position.

Technical parameters of UCZ high-precision magnetostrictive level gauge